I doubt if there's a person who haven't seen the 2nd season after watching the 1st. As for me, I don't seperate between the two seasons, I just feel they're one part. This season had much more events than the 1st one but the 1st season's music was better than this season's. However, if we speak about the general concept everything was nicely done; The actors showed more skills and proved their great talent : I fell for that strong acting. Domyouji remain as my favorite character in this drama, there were new cast beside the old one wich made the drama more interesting. Basically, if you watched the 1st season you won't feel it's finished without watching this one.